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2010200001221 is a prime number
BaseRepresentation
bin11101010000001001010…
…000011100101011000101
321010011200021221121012002
4131100021100130223011
5230413342200014341
64135250110235045
7265142426040656
oct35201120345305
97104607847162
102010200001221
11705580549765
1228570bab5a85
1311773a809559
146d4193d552d
15374536e529b
hex1d40941cac5

2010200001221 has 2 divisors, whose sum is σ = 2010200001222. Its totient is φ = 2010200001220.

The previous prime is 2010200001167. The next prime is 2010200001223. The reversal of 2010200001221 is 1221000020102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1255551624196 + 754648377025 = 1120514^2 + 868705^2 .

It is a cyclic number.

It is not a de Polignac number, because 2010200001221 - 230 = 2009126259397 is a prime.

Together with 2010200001223, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2010200001223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005100000610 + 1005100000611.

It is an arithmetic number, because the mean of its divisors is an integer number (1005100000611).

Almost surely, 22010200001221 is an apocalyptic number.

It is an amenable number.

2010200001221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2010200001221 is an equidigital number, since it uses as much as digits as its factorization.

2010200001221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2010200001221 its reverse (1221000020102), we get a palindrome (3231200021323).

The spelling of 2010200001221 in words is "two trillion, ten billion, two hundred million, one thousand, two hundred twenty-one".